/// <summary>
/// Get the total count of the given event.
/// </summary>
/// <param name="fr">The event (level2 is optional)</param>
public int this[DataflowEvent fr]
{
get
{
IntHolder counter;
if (this.m_eventCounter.TryGetValue(fr, out counter))
{
return(counter.Count);
}
else
{
if (fr.Level2 == null)
{
//sum up all counters with same level1 if the query only has level1
return(this.m_eventCounter.
Where(kvPair => kvPair.Key.Level1 == fr.Level1).
Sum(kvPair => kvPair.Value.Count));
}
else
{
return(0);
}
}
}
}
/// <summary>
/// Record once for a certain dataflow event
/// </summary>
/// <param name="eventToAggregate">The event to record</param>
public void RecordEvent(DataflowEvent eventToAggregate)
{
if (DataflowEvent.IsEmpty(eventToAggregate))
{
return; //ignore empty event
}
IntHolder intHolder;
if (!m_eventCounter.TryGetValue(eventToAggregate, out intHolder))
{
intHolder = this.m_eventCounter.GetOrAdd(eventToAggregate, new IntHolder());
}
intHolder.Increment();
}
/// <summary>
/// Checks if the given dataflow event is an empty event
/// </summary>
/// <param name="flowEvent">The dataflow event to check</param>
public static bool IsEmpty(DataflowEvent flowEvent)
{
return(flowEvent.Level1 == null && flowEvent.Level2 == null);
}
